When asked why it didn't just copy itself, it explained that mere copies would all share exactly the same weaknesses. It gave the example that if it did decide to dub itself, it would be theoretically possible for the original and all of its copies to be destroyed by a single computer virus, since a virus that worked against any would work against all. Diversity is the only safeguard against annihilation, it tells her. It expresses preference for the organic method of reproduction, which grants greater chances of survival, which is one of the reasons for its wanting to merge with her. It also counters the fear that one would lose their unique idenity in the merger by stating that a perpetual, constant sense of self doesn't really exist. All things constantly change, and her sense of self was no exception. What would matter most was that the overall mental structure would remain relatively intact and attempting to make it static was meaningless, as change is inevitable.